As you know, the Denver Broncos beat the Carolina Panthers 24-10 on Sunday to win Super Bowl 50.  Panthers quarterback Cam Newton was of course notably upset but he still smiled and hugged Peyton Manning as he won the Super Bowl for perhaps the last time.  That Cam Newton however is not the person that showed up to the post game press conference.  Newton was sullen, subdued and looked visibly agitated before he finally got fed up and walked out of the presser.